ESP32-LYRAT – ESP32 Audio Development Board

Esp32 Audio Development Board, Integrates Esp32-Wrover/Esp32-Wrover-B

Highlights:

A variety of mainstream, both lossy and lossless, compressed audio formats, including M4A, AAC, FLAC, OGG, OPUS, MP3, etc.
One-key configuration and wake-up from the standby mode.
SoftAP and Station mode.
Various wireless protocols?Wi-Fi 802.11b/g/n, Classic BT and BLE.
A series of audio inputs, including Wi-Fi, BT-audio, DLNA, Line-in, etc.
BLE network configuration, and smart network configuration such as WeChat.
Two microphones for the development of near-field and far-field voice recognition applications.
Peripherals for differentiated demands.

Key Features:
ESP32-WROVER Module
ESP32-WROVER is a powerful, general-purpose Wi-Fi+BT+BLE MCU module thattargets a wide variety of applications, ranging from low-power sensor networks to themost demanding tasks, such as voice encoding, music streaming and MP3 decoding.
Micro SD Card
Supports SPI,1-bit and 4-bit modes.
Audio Output AUX_IN
Works as the input to the ES8388 codec.
USB-UART Interface and USB Power Supply Interface

USB-UART Interface: the integrated CP2102N-A01-GQFN28 chip is used to convertUSB to UART and supports a baud rate of up to 3 Mbit/s.
USB Power Supply Interface: the working current of the Wi-Fi module is very high atpeak times. Therefore, a power supply with a capacity of more than 500 mA isRecommended.

Touch Buttons
Four touch buttons are available on the development board: Play, Set, Vol+ and Vol?.Used as keys for audio functions, they bring such advantages as reduced BOM costand design flexibility.
Speaker Interfaces
Supports two external speakers.

Resources
User Guide